1. n., The land breeze that blows at night; hence, any cool breeze: he hau kekahi makani mauka mai, ua manao ia mai loko mai o ke kuahiwi kela makani. (This word has several forms. It usually takes ke for its article instead of ka; but the ke is sometimes united with it, and then it becomes kehau. This, however, requires a new article, which would he ke, ke kehau; but this article also sometimes adheres to the noun, and thus requires a new article still; hence the different forms of the word: hau, kehau, and ke kehau, all of which take corresponding articles.
2. n., Ancient name of a very gentle and hardly perceptible inland current of air in the evening and early morning; known also as kehau, supposed to indicate the dew point.
3. n., Dew; dew-drops.
4. n., The general name of snow, ice, frost, cold dew, etc: i hoomanawanui ai hoi kaua i ka hau huihui o ke kakahiaka, when we two also persevered in the cold frost of the morning; hau paa, hoar frost.
5. n., A soft porous stone used for smoothing and polishing calabashes.
6. n., A freely branching tree. (Paritium tiliaceum). Very common along the coast. Two species were known to Hawaiians, kaekae (light) and koii (heavy or hard). The light wood served for outriggers of canoes; the bark, tough and pliable, was used in making rope. See hau-kuahiwi.